30+ Mouthwatering Saturday Keto Tuna Steak Recipes You’ll Love

Saturdays are all about relaxing and enjoying great food, and if you’re following a keto lifestyle, you’re likely looking for meals that are both satisfying and low in carbs.

Tuna steak is the perfect choice for a keto-friendly meal: rich in protein, full of healthy fats, and versatile enough to pair with a variety of delicious sides and flavors.

Whether you’re craving something simple like a grilled tuna steak with a fresh salad or looking to get a bit more creative with a creamy sauce or zesty marinade, we’ve got you covered.

In this blog, we’ll share 30+ incredible keto tuna steak recipes that will elevate your Saturday dinner game.

These recipes are not only easy to make but also bursting with flavor, ensuring you have a satisfying meal that aligns with your keto goals.

So, get ready to add some variety to your weekend meals with these healthy, mouthwatering tuna steak recipes!

30+ Mouthwatering Saturday Keto Tuna Steak Recipes You’ll Love

Incorporating tuna steaks into your Saturday meals is a fantastic way to enjoy a keto-friendly, protein-packed dinner.

With so many versatile and flavorful recipes to choose from, you can keep your weekend meals exciting and full of variety.

Whether you’re in the mood for something spicy, creamy, or fresh, these 30+ keto tuna steak recipes offer something for everyone.

With their ease of preparation and incredible flavors, these dishes will quickly become your go-to options for a satisfying, healthy Saturday dinner.

So, grab your tuna steaks, fire up the grill or skillet, and enjoy a delightful keto meal that will keep you on track while still indulging in delicious flavors!

Grilled Keto Tuna Steak with Avocado Salsa

This keto tuna steak recipe combines the richness of grilled tuna with a fresh, creamy avocado salsa for a satisfying, low-carb meal. The tuna is seasoned with a blend of spices and grilled to perfection, while the avocado salsa adds a burst of flavor with a hint of citrus.

Ingredients:

• 2 tuna steaks
• 1 tablespoon olive oil
• Salt and pepper to taste
• 1 teaspoon garlic powder
• 1 teaspoon paprika
• 1 tablespoon lime juice
• 1 ripe avocado, diced
• 1 small red onion, finely chopped
• 1 small tomato, diced
• Fresh cilantro, chopped
• 1 tablespoon olive oil for salsa

Instructions:

1. Preheat the grill to medium-high heat.
2. Brush the tuna steaks with olive oil and season with salt, pepper, garlic powder, and paprika.
3. Grill the tuna steaks for about 2-3 minutes on each side, depending on thickness and desired doneness.
4. In a separate bowl, combine the diced avocado, red onion, tomato, cilantro, lime juice, and olive oil. Stir gently.
5. Once the tuna steaks are done, plate them and top with the avocado salsa.
6. Serve immediately with a side of sautéed spinach or zucchini noodles.

The combination of grilled tuna and avocado salsa offers a delightful contrast of textures, with the tenderness of the tuna complementing the creamy avocado. This dish is not only packed with healthy fats and protein but is also a refreshing and filling meal. The addition of fresh cilantro and lime brightens the flavors, making it an ideal dish for a keto-friendly Saturday lunch or dinner.

Pan-Seared Tuna Steaks with Garlic Butter Sauce

This recipe showcases how to make pan-seared tuna steaks, served with a rich garlic butter sauce. The steaks are seared to create a crispy outer layer while remaining tender inside. The garlic butter sauce adds depth and flavor, enhancing the tuna’s natural taste.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 2 tablespoons olive oil
• 4 tablespoons unsalted butter
• 3 garlic cloves, minced
• 1 tablespoon fresh parsley, chopped
• 1 tablespoon lemon juice

Instructions:

1. Heat olive oil in a large skillet over medium-high heat.
2. Season the tuna steaks with salt and pepper on both sides.
3. Once the skillet is hot, add the tuna steaks and cook for about 2-3 minutes on each side for medium-rare.
4. In a separate pan, melt butter over medium heat, then add minced garlic. Sauté for 1-2 minutes until fragrant.
5. Remove the garlic butter sauce from heat and stir in fresh parsley and lemon juice.
6. Plate the tuna steaks and drizzle the garlic butter sauce over the top.
7. Serve with a side of steamed broccoli or cauliflower rice.

The garlic butter sauce brings a luscious richness to the tuna, complementing its natural flavors without overpowering them. Pan-searing the steaks ensures a beautiful crust while keeping the interior tender and juicy. This dish is an excellent choice for anyone craving a quick yet indulgent keto meal on a Saturday, offering a balance of flavors and textures that will satisfy both taste buds and nutritional goals.

Keto Tuna Steak Salad with Lemon-Dijon Dressing

This keto tuna steak salad is a healthy and light option, perfect for a Saturday meal. It features pan-seared tuna steaks served on a bed of leafy greens, topped with a zesty lemon-Dijon dressing. The freshness of the salad and the protein-packed tuna make this dish both satisfying and nutritious.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil
• Mixed salad greens (arugula, spinach, or lettuce)
• 1 cucumber, sliced
• 1 small red onion, thinly sliced
• 1/2 cup cherry tomatoes, halved
• 2 tablespoons olive oil (for dressing)
• 1 tablespoon Dijon mustard
• 1 tablespoon lemon juice
• 1 teaspoon honey (optional)
• 1 teaspoon fresh dill, chopped

Instructions:

1. Season the tuna steaks with salt and pepper.
2. Heat olive oil in a skillet over medium-high heat and sear the tuna steaks for about 2-3 minutes on each side.
3. In a small bowl, whisk together olive oil, Dijon mustard, lemon juice, honey (if using), and fresh dill to make the dressing.
4. Assemble the salad by placing mixed greens, cucumber slices, red onion, and cherry tomatoes on a plate.
5. Slice the tuna steaks and arrange them on top of the salad.
6. Drizzle the lemon-Dijon dressing over the salad and serve.

This tuna steak salad is a refreshing and light meal that is perfect for a warm Saturday afternoon. The tender tuna pairs beautifully with the crisp greens and tangy lemon-Dijon dressing. It’s a satisfying, nutrient-dense dish that offers a perfect balance of healthy fats, protein, and fiber. This recipe is great for those following a keto diet and seeking a flavorful yet simple salad option.

Spicy Tuna Steaks with Cauliflower Mash

For a Saturday keto dinner, this spicy tuna steak recipe paired with creamy cauliflower mash is a perfect combination. The tuna is seasoned with chili flakes and other spices to create a bold flavor, while the cauliflower mash serves as a low-carb alternative to mashed potatoes.

Ingredients:

• 2 tuna steaks
• 1 tablespoon olive oil
• Salt and pepper to taste
• 1 teaspoon chili flakes
• 1 teaspoon paprika
• 1 tablespoon lemon zest
• 1 medium cauliflower, cut into florets
• 1/4 cup heavy cream
• 2 tablespoons butter
• 2 garlic cloves, minced

Instructions:

1. Preheat the grill or skillet over medium-high heat.
2. Brush the tuna steaks with olive oil and season with salt, pepper, chili flakes, paprika, and lemon zest.
3. Grill the tuna steaks for 2-3 minutes on each side for medium-rare, or longer for a well-done steak.
4. While the tuna cooks, steam the cauliflower florets until tender, about 10-12 minutes.
5. Mash the cauliflower with butter, heavy cream, and minced garlic until smooth and creamy.
6. Serve the tuna steaks alongside the cauliflower mash.

The spicy seasoning on the tuna adds a wonderful kick, while the cauliflower mash provides a smooth, creamy base to balance the heat. This dish is an excellent option for those following a keto lifestyle, as it combines the high-quality protein from the tuna with the low-carb, fiber-rich cauliflower. It’s a filling and flavorful meal that’s perfect for a cozy Saturday night in.

Seared Tuna Steaks with Zucchini Noodles and Pesto

This keto-friendly recipe pairs seared tuna steaks with zucchini noodles tossed in a rich, homemade pesto sauce. The freshness of the zucchini noodles complements the savory tuna, while the pesto adds an herbaceous flavor that brings the whole dish together.

Ingredients:

• 2 tuna steaks
• 2 medium zucchinis, spiralized
• 2 tablespoons olive oil (for searing)
• Salt and pepper to taste
• 1/4 cup pesto (store-bought or homemade)
• 1 tablespoon lemon juice
• 1/4 cup pine nuts, toasted
• 2 tablespoons Parmesan cheese, grated

Instructions:

1. Season the tuna steaks with salt and pepper.
2. Heat olive oil in a skillet over medium-high heat and sear the tuna steaks for 2-3 minutes per side, or to your preferred doneness.
3. While the tuna cooks, heat a separate pan over medium heat and sauté the zucchini noodles for 2-3 minutes until tender but still slightly crisp.
4. Toss the zucchini noodles with pesto and lemon juice.
5. Plate the zucchini noodles and top with the seared tuna steaks.
6. Sprinkle with toasted pine nuts and grated Parmesan cheese before serving.

The combination of seared tuna and pesto-covered zucchini noodles is a keto-friendly, low-carb delight. The pesto brings a burst of flavor, while the zucchini noodles provide a satisfying texture without the carbs of traditional pasta. This dish is a great way to enjoy a light yet filling Saturday dinner that’s full of healthy fats, protein, and fresh ingredients. Perfect for a ketogenic diet, this recipe is both indulgent and nutritious.

Lemon Herb Tuna Steaks with Roasted Brussels Sprouts

This flavorful keto tuna steak recipe is seasoned with a lemon herb marinade, grilled to perfection, and paired with roasted Brussels sprouts. The combination of zesty lemon, aromatic herbs, and tender tuna creates a well-rounded and satisfying meal.

Ingredients:

• 2 tuna steaks
• 2 tablespoons olive oil
• 1 tablespoon lemon zest
• 1 tablespoon fresh thyme, chopped
• 1 tablespoon fresh rosemary, chopped
• 1 garlic clove, minced
• Salt and pepper to taste
• 1 cup Brussels sprouts, halved
• 2 tablespoons olive oil (for roasting)
• 1 tablespoon balsamic vinegar

Instructions:

1. Preheat the oven to 400°F (200°C).
2. In a bowl, mix olive oil, lemon zest, thyme, rosemary, garlic, salt, and pepper to create the marinade.
3. Coat the tuna steaks with the marinade and let them rest for 15 minutes.
4. While the tuna marinates, toss the Brussels sprouts with olive oil, salt, and pepper, and roast them in the oven for 20-25 minutes, or until golden and crispy.
5. Grill the tuna steaks over medium-high heat for 2-3 minutes on each side.
6. Drizzle balsamic vinegar over the roasted Brussels sprouts and serve alongside the tuna steaks.

The lemon herb marinade infuses the tuna with fresh, aromatic flavors, while the roasted Brussels sprouts offer a crunchy contrast to the tender fish. This meal is not only keto-friendly but also rich in antioxidants, making it a healthy choice for a Saturday meal. The balsamic vinegar adds a touch of sweetness to the Brussels sprouts, perfectly balancing the overall dish.

Tuna Steak with Cucumber and Feta Salad

This keto tuna steak is served with a refreshing cucumber and feta salad. The crispness of the cucumber and the creaminess of feta cheese pair perfectly with the rich, grilled tuna, creating a light but satisfying dish that’s ideal for a weekend lunch.

Ingredients:

• 2 tuna steaks
• 1 tablespoon olive oil
• Salt and pepper to taste
• 1 teaspoon dried oregano
• 1 cucumber, thinly sliced
• 1/2 cup feta cheese, crumbled
• 1 tablespoon red wine vinegar
• 1 tablespoon olive oil (for salad)
• Fresh parsley, chopped

Instructions:

1. Preheat the grill or skillet over medium-high heat.
2. Season the tuna steaks with salt, pepper, and dried oregano, then drizzle with olive oil.
3. Grill the tuna steaks for 2-3 minutes on each side, or until cooked to your desired level of doneness.
4. In a separate bowl, combine the cucumber slices, crumbled feta, red wine vinegar, olive oil, and parsley. Toss gently.
5. Serve the grilled tuna steaks with the cucumber and feta salad on the side.

This tuna steak with cucumber and feta salad is a light, refreshing, and fulfilling meal. The tuna provides a rich source of protein, while the salad adds a crunchy, tangy contrast. The feta adds creaminess, balancing the crisp cucumber and fresh herbs. This dish is ideal for a keto lunch or dinner, offering a delightful combination of flavors that leave you feeling satisfied without the carbs.

Blackened Tuna Steaks with Cauliflower Rice Pilaf

The blackened tuna steaks are packed with bold flavors, thanks to a spicy rub, and are served with a flavorful cauliflower rice pilaf. This keto meal is perfect for those who want a filling, low-carb dish with a kick of spice.

Ingredients:

• 2 tuna steaks
• 2 tablespoons olive oil
• 1 tablespoon paprika
• 1 teaspoon cumin
• 1 teaspoon garlic powder
• 1/2 teaspoon cayenne pepper
• Salt and pepper to taste
• 1 medium cauliflower, grated into rice-like pieces
• 1/4 cup diced onion
• 1/4 cup diced bell pepper
• 2 tablespoons butter
• 1 tablespoon fresh parsley, chopped

Instructions:

1. Mix paprika, cumin, garlic powder, cayenne, salt, and pepper in a small bowl to make the spice rub.
2. Rub the spice mixture generously over both sides of the tuna steaks.
3. Heat olive oil in a skillet over medium-high heat and cook the tuna steaks for 2-3 minutes on each side, until blackened and cooked through.
4. In a separate pan, melt butter and sauté the diced onion and bell pepper for 2-3 minutes.
5. Add grated cauliflower to the pan and cook for 5-7 minutes, stirring occasionally, until tender.
6. Stir in fresh parsley and serve the blackened tuna steaks over the cauliflower rice pilaf.

The blackened tuna steaks bring bold, smoky flavors that pair perfectly with the light cauliflower rice pilaf, making this dish a perfect keto dinner. The heat from the cayenne pepper and the depth of the spices on the tuna offer a rich contrast to the mild cauliflower rice. This dish is a great choice for those following a keto diet, providing both flavor and satisfaction without the carbs.

Tuna Steak with Creamy Spinach and Artichoke Sauce

This keto-friendly tuna steak is served with a creamy spinach and artichoke sauce, offering a rich, flavorful combination of ingredients. The creamy sauce complements the tender tuna perfectly, making it a luxurious meal for a Saturday night.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil
• 1 tablespoon butter
• 2 garlic cloves, minced
• 1/2 cup heavy cream
• 1/2 cup chopped spinach
• 1/2 cup canned artichoke hearts, chopped
• 1/4 cup Parmesan cheese, grated

Instructions:

1. Heat olive oil in a skillet over medium-high heat. Season the tuna steaks with salt and pepper, then sear them for 2-3 minutes on each side.
2. In a separate pan, melt butter and sauté the minced garlic for 1-2 minutes until fragrant.
3. Add heavy cream, spinach, and artichokes to the pan, cooking for 3-4 minutes until the spinach wilts.
4. Stir in Parmesan cheese and cook for another 2 minutes until the sauce thickens.
5. Plate the tuna steaks and pour the creamy spinach and artichoke sauce over the top.

This creamy spinach and artichoke sauce transforms the tuna steaks into a rich and comforting dish. The sauce is indulgent yet keto-friendly, providing a satisfying meal full of healthy fats and protein. This dish is perfect for those looking for a gourmet keto experience that feels like a treat but stays true to low-carb principles.

Tuna Steak with Roasted Garlic and Herb Butter

This keto tuna steak recipe features seared tuna steaks topped with a rich, roasted garlic, and herb butter. The flavor of the butter, with its blend of garlic and herbs, elevates the tuna and creates a savory dish that’s both indulgent and satisfying.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil
• 1 bulb garlic
• 1/4 cup unsalted butter, softened
• 1 tablespoon fresh thyme, chopped
• 1 tablespoon fresh rosemary, chopped
• 1 tablespoon lemon juice

Instructions:

1. Preheat the oven to 400°F (200°C). Slice the top off the garlic bulb and drizzle with olive oil. Wrap in foil and roast for 30-35 minutes, or until soft and fragrant.
2. Once the garlic is roasted, squeeze the cloves into a small bowl and mix with softened butter, thyme, rosemary, and lemon juice.
3. Season the tuna steaks with salt and pepper, then heat olive oil in a skillet over medium-high heat.
4. Sear the tuna steaks for 2-3 minutes on each side, until cooked to your preference.
5. Top each tuna steak with a generous spoonful of the roasted garlic and herb butter.

The roasted garlic and herb butter adds a luxurious, savory flavor to the tuna, making this dish both rich and satisfying. It’s perfect for those who want to enjoy a special keto meal on a Saturday night. The combination of garlic, herbs, and butter creates an indulgent topping that enhances the tuna’s natural flavors, making this a perfect keto dinner option.

Tuna Steak with Cilantro Lime Slaw

This keto tuna steak recipe is paired with a refreshing cilantro lime slaw, making it a perfect Saturday meal. The tuna is grilled to perfection and complemented by the crisp, tangy slaw with a hint of lime and cilantro. This meal is light yet satisfying and offers a delightful contrast in flavors.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil
• 1/2 teaspoon chili powder
• 1/2 teaspoon cumin
• 1 small cabbage, shredded
• 1/4 cup cilantro, chopped
• 1 tablespoon lime juice
• 2 tablespoons apple cider vinegar
• 2 tablespoons mayonnaise

Instructions:

1. Preheat the grill or skillet over medium-high heat.
2. Season the tuna steaks with salt, pepper, chili powder, and cumin. Drizzle with olive oil.
3. Grill the tuna steaks for 2-3 minutes on each side for medium-rare or longer if preferred.
4. In a large bowl, combine shredded cabbage, chopped cilantro, lime juice, apple cider vinegar, and mayonnaise. Toss well to coat.
5. Serve the grilled tuna steaks with the cilantro lime slaw on the side.

The combination of grilled tuna and the fresh, tangy cilantro lime slaw creates a light yet flavorful meal. The slaw’s crunch and the lime’s zing balance the richness of the tuna, making this a perfect keto dish. This recipe is ideal for a Saturday lunch or dinner when you want something refreshing, healthy, and full of flavor.

Tuna Steak with Roasted Asparagus and Hollandaise Sauce

This elegant keto meal features seared tuna steaks served with perfectly roasted asparagus and topped with a rich hollandaise sauce. The creamy sauce, with its buttery richness and lemony flavor, complements the freshness of the asparagus and the seared tuna, creating a well-rounded and satisfying dish.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil
• 1 bunch asparagus, trimmed
• 2 tablespoons olive oil (for roasting)
• 4 large egg yolks
• 1/2 cup unsalted butter, melted
• 1 tablespoon lemon juice
• 1 teaspoon Dijon mustard

Instructions:

1. Preheat the oven to 400°F (200°C). Toss the asparagus with olive oil, salt, and pepper, and roast in the oven for 12-15 minutes until tender and slightly crispy.
2. Season the tuna steaks with salt and pepper, then heat olive oil in a skillet over medium-high heat. Sear the tuna steaks for 2-3 minutes on each side, or to your desired doneness.
3. In a small saucepan, whisk together egg yolks, lemon juice, and Dijon mustard over low heat. Gradually add melted butter while whisking constantly until the sauce thickens.
4. Plate the tuna steaks and roasted asparagus, then drizzle with hollandaise sauce.

The seared tuna paired with roasted asparagus and topped with rich hollandaise sauce creates a luxurious, keto-friendly meal. The creamy, lemony sauce elevates the dish, while the asparagus provides a perfect crunchy contrast. This is an indulgent yet healthy dinner that’s ideal for a special Saturday meal or a cozy night in.

Tuna Steaks with Pesto Zoodles

This keto dish pairs seared tuna steaks with pesto zucchini noodles (zoodles). The zoodles are light yet satisfying, and the pesto adds a rich, herbaceous flavor that complements the fresh tuna. This low-carb, flavorful meal is perfect for those on a keto diet looking for something quick, tasty, and satisfying.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 2 medium zucchinis, spiralized into noodles
• 1/4 cup pesto (store-bought or homemade)
• 1 tablespoon olive oil
• 1 tablespoon lemon zest
• 1 tablespoon Parmesan cheese, grated

Instructions:

1. Heat olive oil in a skillet over medium-high heat. Season the tuna steaks with salt and pepper, then sear for 2-3 minutes on each side.
2. In a separate pan, sauté the zoodles over medium heat for 2-3 minutes, until tender but still firm.
3. Toss the zoodles with pesto, lemon zest, and Parmesan cheese.
4. Plate the pesto zoodles and top with the seared tuna steaks.

This dish is a perfect example of how you can make a satisfying, low-carb meal with minimal effort. The pesto zoodles are both creamy and fresh, and the tuna steaks bring a savory, protein-packed element. This dish is flavorful, light, and keto-friendly, making it a great choice for a weekend meal.

Tuna Steak with Lemon Capers Butter Sauce

This recipe features tuna steaks seared to perfection and served with a zesty lemon caper butter sauce. The combination of bright lemon, salty capers, and creamy butter makes this dish a flavorful, indulgent meal that fits into your keto lifestyle.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil
• 1/4 cup unsalted butter
• 2 tablespoons capers, drained
• 1 tablespoon lemon juice
• 1 tablespoon fresh parsley, chopped

Instructions:

1. Season the tuna steaks with salt and pepper. Heat olive oil in a skillet over medium-high heat, then sear the tuna steaks for 2-3 minutes per side.
2. In a separate pan, melt butter over medium heat, then add capers and lemon juice. Stir for 1-2 minutes until the sauce thickens slightly.
3. Plate the tuna steaks and drizzle the lemon caper butter sauce over the top.
4. Garnish with chopped parsley.

The lemon caper butter sauce perfectly complements the seared tuna steaks, bringing bright, tangy flavors that cut through the richness of the fish. The capers add a touch of saltiness, while the fresh parsley gives the dish a pop of color and freshness. This meal is not only keto-friendly but also easy to prepare, making it a great option for a flavorful Saturday dinner.

Tuna Steaks with Roasted Tomato and Basil Salad

This recipe combines seared tuna steaks with a roasted tomato and basil salad. The roasted tomatoes bring out their natural sweetness, while the fresh basil adds an aromatic touch, complementing the rich tuna steaks. This is a light yet flavorful meal perfect for a relaxing Saturday evening.

Ingredients:

• 2 tuna steaks
• Salt and pepper to taste
• 1 tablespoon olive oil (for searing)
• 2 cups cherry tomatoes, halved
• 1 tablespoon olive oil (for roasting)
• Salt and pepper to taste
• 1/4 cup fresh basil, chopped
• 1 tablespoon balsamic vinegar

Instructions:

1. Preheat the oven to 375°F (190°C). Toss the cherry tomatoes with olive oil, salt, and pepper, then roast for 15-20 minutes, or until tender and caramelized.
2. Season the tuna steaks with salt and pepper. Heat olive oil in a skillet over medium-high heat and sear the tuna steaks for 2-3 minutes on each side.
3. Toss the roasted tomatoes with fresh basil and balsamic vinegar.
4. Serve the seared tuna steaks with the roasted tomato and basil salad.

The combination of tender tuna and sweet, roasted tomatoes creates a wonderful balance of flavors. The fresh basil and balsamic vinegar add a touch of brightness and acidity, making this dish light and refreshing. This keto meal is perfect for a simple, satisfying dinner that celebrates fresh ingredients and rich flavors.

Note: More recipes are coming soon!